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Snazpappy
Joined: 01 Jan 2019
Posts: 33
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 Posted: Sun Oct 13, 2024 8:43 am Post subject: NO OIL PRESSURE |
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I'm tried starting my newly rebuilt engine the other day. It started right up, but no oil pressure.
I have a YAK 52TW. I had all the engine hoses rebuilt,
and the oil cooler overhauled, so I am starting with a completely vacated oil system. Before starting I rotated the prop numerous times by hand and also rotated the engine over with the electric starter attempting to get oil pressure. I was never able to get any pressure or any oil to the oil cooler, or the oil pump. It was suggested to me to go ahead and start the engine and let the engine oil pump fill the engine. I started the engine up and after 20 seconds shut it down due to no oil pressure. I started to check to see if oil was filling the engine, and still no oil in the oil cooler. I have oil going from the tank to the oil filter sump and it fills the oil filter, but I cannot get any oil to go from the filter to the oil pump. I find it strange that oil will not go beyond here as the oil should fill into all hoses below the oil supply. Can any one give me ideas on what to do or try next? Am I missing something?
I am enclosing a picture of my oil filter.
Thanks
Todd Snaza
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markbitterlich(at)embarqm
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| Posted: Sun Oct 13, 2024 8:50 am Post subject: NO OIL PRESSURE |
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Did you carefully check all hoses for "Flapper" at the hose fittings and/or other hose obstructions before install? If not, that would be a good place to start.
Mark
-------- Original message --------
From: Snazpappy <snazman1(at)hotmail.com>
Date: 10/13/24 12:44 PM (GMT-05:00)
To: m14pengines-list(at)matronics.com
Subject: M14PEngines-List: NO OIL PRESSURE
--> M14PEngines-List message posted by: "Snazpappy" <snazman1(at)hotmail.com>
I'm tried starting my newly rebuilt engine the other day. It started right up, but no oil pressure.
I have a YAK 52TW. I had all the engine hoses rebuilt,
and the oil cooler overhauled, so I am starting with a completely vacated oil system. Before starting I rotated the prop numerous times by hand and also rotated the engine over with the electric starter attempting to get oil pressure. I was never able to get any pressure or any oil to the oil cooler, or the oil pump. It was suggested to me to go ahead and start the engine and let the engine oil pump fill the engine. I started the engine up and after 20 seconds shut it down due to no oil pressure. I started to check to see if oil was filling the engine, and still no oil in the oil cooler. I have oil going from the tank to the oil filter sump and it fills the oil filter, but I cannot get any oil to go from the filter to the oil pump. I find it strange that oil will not go beyond here as the oil should fill into all hoses below the oil supply. Can any one give me ideas on what to do or try next? Am I missing something?
I am enclosing a picture of my oil filter.
Thanks
Todd Snaza
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Snazpappy
Joined: 01 Jan 2019
Posts: 33
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| Posted: Sun Oct 13, 2024 4:13 pm Post subject: Re: NO OIL PRESSURE |
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Thanks fro the reply Mark,
I will definitely check that out next.
I know oil is getting from the tank to the oil sump/filter and when the filter is pushed in oil is filling the filter housing, a lot of the hoses are difficult to get to and so when I had the oil filter out of the housing I was able to push a smaller hose straight up through the bottom of the filter housing and through the oil hose that goes from the filter to the oil pump. I just cannot understand why oil does not seem to leave the oil filter to fill the hose that goes to the pump. I also dissconected the hose from the pump and no oil would come out. Shouldnt head pressure from the oil tank naturally fill the hose from the filter to the pump, both of which is lower than the supply tank? It seems so basic but I think i am missing something. I really think my problem will be the oil supply line of something with the oil filter, as I cannot get oil to leave the oil filter housing.
I will not be able to do any troubleshooting for a couple weeks so I want to get some ideas to try when i get back home. But if something else does not come up I will start at the oil tank and start removing hoses to see if I may have ledt a plug or something in.
Thanks
Todd
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markbitterlich(at)embarqm
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| Posted: Mon Oct 14, 2024 8:43 am Post subject: NO OIL PRESSURE |
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Best of luck. This sounds EXTREMELY frustrating. Would it be possible to push a flexible borescope line through one side of each hose?
Just spitballing here, trying to figure out if an external feed could be fed to oil pump to verify proper operation. I'd have to go look at my engine. Also the thought of bypassing the oil filter and even the oil cooler looking for flow somehow.
Perplexing.
-------- Original message --------
From: Snazpappy <snazman1(at)hotmail.com>
Date: 10/13/24 8:51 PM (GMT-05:00)
To: m14pengines-list(at)matronics.com
Subject: M14PEngines-List: Re: NO OIL PRESSURE
--> M14PEngines-List message posted by: "Snazpappy" <snazman1(at)hotmail.com>
Thanks fro the reply Mark,
I will definitely check that out next.
I know oil is getting from the tank to the oil sump/filter and when the filter is pushed in oil is filling the filter housing, a lot of the hoses are difficult to get to and so when I had the oil filter out of the housing I was able to push a smaller hose straight up through the bottom of the filter housing and through the oil hose that goes from the filter to the oil pump. I just cannot understand why oil does not seem to leave the oil filter to fill the hose that goes to the pump. I also dissconected the hose from the pump and no oil would come out. Shouldnt head pressure from the oil tank naturally fill the hose from the filter to the pump, both of which is lower than the supply tank? It seems so basic but I think i am missing something. I really think my problem will be the oil supply line of something with the oil filter, as I cannot get oil to leave the oil filter housing.
I will not be able to do any troubleshooting for a couple weeks so I want to get some ideas to try when i get back home. But if something else does not come up I will start at the oil tank and start removing hoses to see if I may have ledt a plug or something in.
Thanks
Todd
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=513864#513864
_-============================================================
_-= - The M14PEngines-List Email Forum -
_-= Use the Matronics List Features Navigator to browse
_-= the many List utilities such as List Un/Subscription,
_-= Archive Search & Download, 7-Day Browse, Chat, FAQ,
_-= Photoshare, and much much more:
_-=
_-= --> http://www.matronics.com/Navigator?M14PEngines-List
_-=
_-============================================================
_-= - MATRONICS WEB FORUMS -
_-= Same great content also available via the Web Forums!
_-=
_-= --> http://forums.matronics.com
_-=
_-============================================================
_-= - NEW MATRONICS LIST WIKI -
_-= Add some info to the Matronics Email List Wiki!
_-= --> http://wiki.matronics.com
_-============================================================
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_-= Thank you for your generous support!
_-= -Matt Dralle, List Admin.
_-= --> https://matronics.com/contribution
_-============================================================
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richard(at)rgaeros.com
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| Posted: Mon Oct 14, 2024 9:39 am Post subject: NO OIL PRESSURE |
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I would propose checking that the oil tank is delivering oil by undoing its outlet pipe. Then assuming that is the case, I would put a simple and crude pipe going directly to the oil pump, bypassing filters et cetera. In this way you will know that the oil is getting to the engine. And then try a start.
Richard.
[img]cid:image001.png(at)01DB1E68.5B683670[/img]
RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120
e-mail: richard(at)rgaeros.com (richard(at)rgaeros.com)
www.rgaeros.com
WORLD LEADERS IN EAST EUROPEAN & CHINESE RADIAL AIRCRAFT ENGINES
In partnership with Aerometal Kft, Hungary.
[img]cid:image002.png(at)01DB1E68.5B683670[/img]
From: owner-m14pengines-list-server(at)matronics.com <owner-m14pengines-list-server(at)matronics.com> On Behalf Of Mark Bitterlich
Sent: 14 October 2024 17:43
To: m14pengines-list(at)matronics.com
Subject: RE: Re: NO OIL PRESSURE
Best of luck. This sounds EXTREMELY frustrating. Would it be possible to push a flexible borescope line through one side of each hose?
Just spitballing here, trying to figure out if an external feed could be fed to oil pump to verify proper operation. I'd have to go look at my engine. Also the thought of bypassing the oil filter and even the oil cooler looking for flow somehow.
Perplexing.
-------- Original message --------
From: Snazpappy <snazman1(at)hotmail.com (snazman1(at)hotmail.com)>
Date: 10/13/24 8:51 PM (GMT-05:00)
To: m14pengines-list(at)matronics.com (m14pengines-list(at)matronics.com)
Subject: Re: NO OIL PRESSURE
--> M14PEngines-List message posted by: "Snazpappy" <snazman1(at)hotmail.com (snazman1(at)hotmail.com)>
Thanks fro the reply Mark,
I will definitely check that out next.
I know oil is getting from the tank to the oil sump/filter and when the filter is pushed in oil is filling the filter housing, a lot of the hoses are difficult to get to and so when I had the oil filter out of the housing I was able to push a smaller hose straight up through the bottom of the filter housing and through the oil hose that goes from the filter to the oil pump. I just cannot understand why oil does not seem to leave the oil filter to fill the hose that goes to the pump. I also dissconected the hose from the pump and no oil would come out. Shouldnt head pressure from the oil tank naturally fill the hose from the filter to the pump, both of which is lower than the supply tank? It seems so basic but I think i am missing something. I really think my problem will be the oil supply line of something with the oil filter, as I cannot get oil to leave the oil filter housing.
I will not be able to do any troubleshooting for a couple weeks so I want to get some ideas to try when i get back home. But if something else does not come up I will start at the oil tank and start removing hoses to see if I may have ledt a plug or something in.
Thanks
Todd
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=513864#513864
http://www.mSame great content also available via the Web href="http://forums.matronics.com">http://forums.matronics.com
_p; - NEW MATRONICS nbsp; - List Contribution Web Site bsp; -Matt Dralle, List href="https://matronics.com/contribution">https://matronics.com/contrib===============
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